Things I have built

My professional home on the web: a full-stack Next.js platform with a private dashboard that manages every page, image and document on the site, joined to a separate technical blog.

A next-generation Mars rover prototype built by Team DUET TimeOut for the University Rover Challenge, the world's leading robotics competition for student-built planetary rovers. The team qualified for the URC 2017 final in Utah, USA, as one of around 30 teams selected worldwide.

A self-funded quadcopter designed, built and tuned from scratch by Team DUET Runway-71, which I founded and led. On 11 August 2017, it made the first successful drone flight in DUET's history.

A compact autonomous robot that Team DUET Robo Express designed and built entirely in-house, from circuit design and simulation to a hand-made PCB, soldering, programming and tuning. It won 2nd Runner-up at the Global Robotics Challenge 2016, the IARC Bangladesh Zonal round.

My B.Sc. thesis at DUET: a simulation study comparing five feedback control techniques for high-speed nanopositioning systems, an atomic force microscope (AFM) and a piezoelectric tube scanner (PZT). We designed and tuned each controller in MATLAB and Simulink, then compared their stability, speed, damping and tracking to find the best controller for each system.

A university project that automates a conveyor belt with a Siemens LOGO PLC, using inductive proximity and capacitive sensors to detect items on the belt and control the motor automatically. It recreated, on a small scale, the sensor-driven material handling used on production lines across industry.

A university project that builds a star-delta starter for a three-phase induction motor in two versions: a conventional design with magnetic contactors and a timer, and an automated version controlled by a Siemens LOGO PLC. Comparing the two showed how PLC-based control replaces fixed wiring with flexible, programmable logic.

A university project that controls an induction motor's speed, direction, acceleration and deceleration through a variable frequency drive (VFD), automated by a Siemens LOGO PLC. It showed how the PLC-and-VFD combination used across modern industry gives smooth, efficient and programmable motor control.